Raven SCS 450 Supplement

SCS 450 Serial Interface
Installation & Service Manual

While every effort has been made to ensure the accuracy of this document,
Raven Industries assumes no responsibility for omissions and errors. Nor is any
liability assumed for damages resulting from the use of information contained
herein.
Raven Industries shall not be held responsible or liable for the effects of
atmospheric conditions and sunspot activity on the performance of our products.
Raven Industries cannot guarantee the accuracy, integrity, continuity, or
availability of the GPS signal from the U.S. Department of Defense/NAVSTAR
GPS satellites, the OmniSTAR correction service, or the WAAS correction
service. Raven Industries accepts no responsibility for the use of the signal for
other than the stated purpose.
Raven Industries shall not be responsible or liable for incidental or consequential
damages or a loss of anticipated benefits or profits, work stoppage or loss, or
impairment of data arising out of the use, or inability to use, this system or any of
its components.
Disclaimer

Table of Contents
Manual No. 016-0159-831 i
Chapter 1 Important Safety Information................................................. 1
Important Safety Information .....................................................................................................1
Hydraulic Safety ..................................................................................................................2
Electrical Safety ...................................................................................................................2
Chapter 2 Introduction............................................................................. 3
Introduction ...............................................................................................................................3
Unit Definitions and Conversions ..............................................................................................4
Unit of Measure Definitions .................................................................................................4
Unit of Measure Conversions ..............................................................................................4
Calculating Machine’s Calibration Values .................................................................................5
Calculate the Boom Cal Value .............................................................................................5
Calculate the Speed Cal Value ............................................................................................5
Calculate the Meter Cal Value .............................................................................................7
Calculate the Valve Cal Value .............................................................................................7
Calculate the Rate 1 and Rate 2 Cal Values .......................................................................8
Verifying Flow Rate Limits ...................................................................................................9
Chapter 3 Calibration Card.................................................................... 11
Introduction ............................................................................................................................. 11
Chapter 4 Installation............................................................................. 13
Sensor Installation ...................................................................................................................13
Raven Radar Speed Sensor ..............................................................................................13
Wheel Drive Speed Sensor ...............................................................................................14
Phoenix 10 GPS Speed Sensor ........................................................................................16
Flow Meter Installation ............................................................................................................17
Mounting the Flow Meter ...................................................................................................17
Install the Pressure Transducer - Optional ........................................................................17
Control Valve Installation .........................................................................................................18
Install the Control Valve .....................................................................................................18
Alternate Bypass Line Plumbing System ..........................................................................19
Connect the Flow Control Cable Boom Valve Connectors ................................................19
Console and Cabling Installation .............................................................................................20
Install the Remote Switch - Optional .................................................................................22
Battery Connections ................................................................................................................23
Chapter 5 Console Programming and Calibration.............................. 25
Console Identification ..............................................................................................................25
Console Features ....................................................................................................................26
Button Definitions ..............................................................................................................27

Table of Contents
ii SCS 450 Serial Interface Installation & Service Manual
Console Programming .............................................................................................................28
Data Entry ..........................................................................................................................28
Initial Console Programming .............................................................................................28
Changing Initial Console Programming .............................................................................30
Programming Additional System Data ...............................................................................31
System Features .....................................................................................................................32
Data Menu .........................................................................................................................32
Data Logger On/Off ...........................................................................................................33
Self Test Feature ...............................................................................................................34
Volume/Min Rate Fault ......................................................................................................35
Volume/Area Rate Alarm ...................................................................................................35
Low Tank Fault ..................................................................................................................35
Automatic Rate +/- .............................................................................................................35
Control Valve Delay and Valve Advance ...........................................................................36
Zero Speed Shut-Off ..........................................................................................................36
Data Lock Feature .............................................................................................................36
Decimal Shift Feature ........................................................................................................37
Chapter 6 Initial System Setup and Testing ........................................ 39
Initial System Setup .................................................................................................................39
Alternate Bypass Line System Setup ................................................................................40
Initial System Field Test ...........................................................................................................41
Alternate Bypass Plumbing Initial System Field Test .........................................................41
Chapter 7 Preventative Maintenance & Troubleshooting .................. 43
General Preventative Maintenance .........................................................................................43
Flow Meter Maintenance .........................................................................................................43
Flow Meter Preventative Maintenance and Adjustment ....................................................43
Testing Flow Meter Cables ................................................................................................44
Recalibrating the Flow Meter .............................................................................................45
Speed Sensor Cables ..............................................................................................................46
Testing Speed Sensor Extension Cables ...........................................................................46
Troubleshooting .......................................................................................................................47
Console Issues ..................................................................................................................47
Rate Control Issues ...........................................................................................................48
Chapter 8 Replacement Parts............................................................... 51

CHAPTER
1
Manual No. 016-0159-831 1
C hapt er 1 Important Safety
Information
Important Safety Information
Read this manual and the operation and safety instructions included with your implement and/or controller
carefully before installing the SCS 450 Serial Interface system.
•Follow all safety information presented within this manual.
•If you require assistance with any portion of the installation or service of your Raven equipment, contact
your local Raven dealer for support.
•Follow all safety labels affixed to the system components. Be sure to keep safety labels in good condition
and replace any missing or damaged labels. To obtain replacements for missing or damaged safety labels,
contact your local Raven dealer.
When operating the machine after installing the SCS 450 Serial Interface system, observe the following safety
measures:
•Be alert and away of surroundings.
•Do not operate the SCS 450 Serial Interface system while under the influence of alcohol or an illegal
substance.
•Remain in the operator’s position in the machine at all times when the SCS 450 Serial Interface system is
engaged.
•Determine and remain a safe working distance from other individuals. The operator is responsible for
disabling the SCS 450 Serial Interface system when the safe working distance has been diminished.
•Ensure the SCS 450 Serial Interface is disabled prior to starting any maintenance work on the machine or
parts of the SCS 450 Serial Interface system.
•Follow all label instructions for proper chemical mixing, handling, and container disposal methods.
NOTICE

Chapter 1
2 SCS 450 Serial Interface Installation & Service Manual
Thoroughly bleed the nurse tank hose and all other system lines prior to disassembling the flow meter, fittings,
and hoses, especially in the case of anhydrous ammonia.
Hydraulic Safety
•Raven Industries recommends that appropriate protective equipment be worn at all times when working on
the hydraulic system.
•Never attempt to open or work on a hydraulic system with the equipment running. Care should always be
taken when opening a system that has been previously pressurized.
•When disconnecting the hydraulic hoses or purging is required, be aware that the hydraulic fluid may be
extremely hot and under high pressure. Caution must be exercised.
•Any work performed on the hydraulic system must be done in accordance with the machine manufacturer’s
approved maintenance instructions.
•When installing AutoBoom hydraulics or performing diagnostics, maintenance, or routine service, ensure
that precautions are taken to prevent any foreign material or contaminants from being introduced into the
machine’s hydraulic system. Objects or materials that are able to bypass the machine’s hydraulic filtration
system will reduce performance and possibly damage the hydraulic valves.
Electrical Safety
•Always verify that the power leads are connected to the correct polarity as marked. Reversing the power
leads could cause severe damage to the equipment.
•Ensure that the power cable is the last cable to be connected.
•Disconnect the SCS 450 Serial Interface console before jump-starting the vehicle.
•Disconnect the SCS 450 Serial Interface console before welding any component of the machine.
DANGER
CAUTION

CHAPTER
2
Manual No. 016-0159-831 3
C hapt er 2 Introduction
Introduction
Congratulations on your purchase of the Raven SCS (Sprayer Control System) 450 Serial Interface! The
Raven SCS 450 is designed to provide uniformity of spray applications, regardless of the vehicle’s speed.
Utilizing a computer-based console, a speed sensor, a turbine-type flow meter, and a motorized control valve,
the SCS 450 also functions as an area monitor, speed monitor, and volume totalizer.
The operator sets the target volume per area to be applied, and the SCS 450 automatically maintains the flow.
A manual override switch allows the operator to manually control the flow for spot-spraying. The actual volume
per area being applied is displayed at all times on the console.
NOTICE
The performance of the SCS 450 relies on the
proper installation and preventative
maintenance of the system and the sprayer.
Review this Installation & Service Manual
thoroughly before operating the system.

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4 SCS 450 Serial Interface Installation & Service Manual
Unit Definitions and Conversions
Unit of Measure Definitions
Unit of Measure Conversions
To convert the METER CAL value into the a unit of measure, divide the original number printed on the Flow
Meter label by the desired conversion unit of measure value.
Abbreviation Definition Abbreviation Definition
GPM Gallons per Minute cm Centimeters
lit/min Liters per Minute dm Decimeters
dl/min Deciliters per Minute m Meter
PSI Pounds per Square Inch MPH Miles per Hour
kPa Kilopascal km Kilometers
GPA Gallons per Acre km/h Kilometers per Hour
lit/ha Liters per Hectare US Volume per Acre
ml/ha Milliliters per Hectare SI Volume per Hectare
GPK Gallons per 1,000 Square Feet TU Volume per 1,000 Square Feet
mm Millimeters [ ] Metric Numbers
Fluid Ounces Conversion Formula Liters Conversion Formula Pounds Conversion Formula
Original METER CAL Number
128 Original METER CAL Number 3.785 Original METER CAL Number Weight of One Gallon of Product
Liquid Area
•1 US Gallon = 128 fluid ounces •1 square meter = 10.764 square feet
•1 US Gallon = 3.785 liters •1 hectare = 2.471 acres or 10,000 square meters
•1 US Gallon = 0.83267 imperial gallons •1 acre = 0.405 hectares or 43,560 square feet
•1 US Gallon = 8.34 pounds (water) •1 square mile = 640 acres or 258.9 hectares
Length Pressure
•1 millimeter (mm) = 0.039 inches •1 psi = 6.89 kPa
•1 centimeter (cm) = 0.393 inches •1 kPa = 0.145 psi
•1 meter (m) = 3.281 feet
•1 kilometer (km) = 0.621 miles
•1 inch = 25.4 mm or 2.54 cm
•1 mile = 1.609 km

2
Manual No. 016-0159-831 5
Introduction
Calculating Machine’s Calibration Values
Calculate the Boom Cal Value
Broadcast Spraying
Calculate the Boom Cal value in inches [cm] by multiplying the number of tips by the spacing between the tips.
Be sure to write down these figures for future reference when programming the console.
FIGURE 1. Boom Sections
Band Spraying
Calculate the Boom Cal value in inches [cm] by multiplying the number of tips by the spacing between the tips.
Calculate the Adjusted Applied Rate by multiplying the Broadcast Rate by the Band Width in inches [cm], then
divide by the spacing in inches [cm].
For Example:
Calculate the Speed Cal Value
Raven Radar Only
The initial Speed Cal value for Raven radar is 598 [152]. After the initial console programming has been
performed, this value may be adjusted to optimize the system’s performance.
Broadcast Rate = 20 GPA [200 lit/ha]
Spacing = 40 inches [100 cm]
Band Width = 14 inches [40 cm]
GPA x Band Width = Adjusted Applied Rate
Spacing
20 x 14 = 7 GPA
40
[200] x [40] = 80 lit/ha
[100]

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6 SCS 450 Serial Interface Installation & Service Manual
Phoenix 10 Speed Sensors Only
The initial Speed Cal value for Phoenix 10 speed sensors is 785 [200]. After the initial console programming
has been performed, this value may be adjusted to optimize the system’s performance.
Wheel Drive Speed Sensors Only
Important: This procedure should be performed only after the entire system installation is complete. This
procedure is critical to the console’s performance, so measure carefully. This procedure
should be performed on the same soil conditions in which you will be spraying, since wheel
circumference varies in soft soil versus hard-packed soil.
FIGURE 2. Speed Cal Value Calculation
1. Place a chalk mark or tape on the tire on which the speed sensor is mounted.
2. Mark the spot on the ground directly below the chalk mark or tape.
3. Drive the machine straight ahead, counting 10 full rotations of the wheel.
Important: The mark must stop at the same position (with the chalk mark or tape perpendicular to the
ground at the bottom of the tire) as before it was before the measurement began.
4. Measure the distance (in inches/cm) from the ground starting mark to the stopping mark. Round off fractions
of an inch/cm.
5. Write down this number as it will be used as the Speed Cal value when programming the console.
Note: Large tires and very low speed applications may require additional magnets to ensure accurate
speed readings. Any even number of magnets may be used as long as they alternate in color and
are equally spaced. After calculating the Speed Cal value, the number must be adjusted according
to the actual number of magnets used.
For Example:
Normal Number of Magnets x Calculated Speed Cal = Adjusted Speed Cal
Actual Number of Magnets
4 x 1200 = 800
6

2
Manual No. 016-0159-831 7
Introduction
Calculate the Meter Cal Value
No calculation of the Meter Cal value is necessary, since the flow meter calibration value is stamped on the tag
attached to each flow meter. Locate this number and write it down for future reference when programming the
console.
Calculate the Valve Cal Value
The Valve Cal figure is used to control the response time of the control valve motor to the change in the
vehicle’s speed. After operating the system, this number may be refined. The initial recommended control
valve values are:
•C-SD (standard valve) = 2123
•C-FC (fast-close valve) = 743
•C-F (fast valve) = 743
•C-P (PWM valve) = 43
•C-PC (PWM close valve) = 43
FIGURE 3. Valve Calibration Definitions
Digit Description Range Range Definition
Valve Backlash Controls the time of the first correction pulse after a change in correction direction is
detected (INC to DEC, or DEC to INC) 1 - 9 1 = Short Pulse
9 = Long Pulse
Valve Speed
Controls the response time of the control valve
motor. Caution: Running the control valve
too fast will cause the system to oscillate.
Refer to
specific valve Refer to specific valve
C-SD Valve 1 - 9 1 = Slow
9 = Fast
C-F and C-FC Valve 0 - 9 0 = Fast
9 = Slow
C-P and C-PC Valve 0 - 9 0 = Slow
9 = Fast
C-SD Valve C-F or C-FC Valve C-P or C-PC Valve

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8 SCS 450 Serial Interface Installation & Service Manual
Calculate the Rate 1 and Rate 2 Cal Values
Determine the application rate at which the chemical is to be sprayed, and then consult with your Raven dealer
to verify that the spray nozzles are capable of applying at that rate. To determine which spray nozzles to use
with the sprayer, the following information must be known:
With this information, calculate the volume per minute, per nozzle using the following formula:
Refer to the following chart to determine which nozzle to use based on the desired output.
Brake Point Sets the percentage away from target rate at which the control valve motor begins turning at
a lower rate. 0 - 9 0 = 5%
1 = 10%
9 = 90%
Dead Band Allowable difference between the target and actual application rate, where rate correction is
not performed. 1 - 9 1 = 1%
9 = 9%
Nominal Application Pressure PSI (kpa)
Target Application Rate GPA (lit/ha)
Target Speed MPH (km/h)
Nozzle Spacing inches (cm)
GPA (lit/ha) x MPH (km/h) x inches (cm) = GPM (lit/min)
5,940 [60,000]
Digit Description Range Range Definition

2
Manual No. 016-0159-831 9
Introduction
For Example:
Based on these calculations and a PSI of 30, tip XR8004 should be selected since it comes closest to
providing the desired output.
Verifying Flow Rate Limits
The flow rate of spray must be within the specified range for the flow meter being used.
*Note: Only Krohne Magmeters sold through Raven Industries should be used with Raven controllers. No
other Krohne Magmeters are supported.
Nominal Application Pressure 30 PSI (kpa)
Target Application Rate 20 GPA (lit/ha)
Target Speed 5.2 MPH (km/h)
Nozzle Spacing 20 inches (cm)
20 GPA x 5.2 MPH x 20 inches = .35 GPM
5,940
Flow Meter Model Flow Range
RFM 5 0.1 - 5 GPM [0.2 - 18.9 lit/min]
RFM 15 0.3 - 15 GPM [1.1 - 56.8 lit/min]
RFM 60P 1 - 60 GPM [3.8 - 210 lit/min]
RFM 60S 1 - 60 GPM [3.8 - 210 lit/min]
RFM 100 5 - 100 GPM [18.9 - 380 lit/min]
RFM 200/200 Poly 15 - 200 GPM [56.8 - 760 lit/min]
Magmeter 200 3 - 200 GPM [11.36 - 757 lit/min]
RFM 400 25 - 400 GPM [94.6 - 1515 lit/min]
Krohne 3” Magmeter* 15 - 250 GPM [56.78 - 946.25 lit/min]
Krohne 4” Magmeter* 35 - 1,800 GPM [132.48 - 6813 lit/min]
Krohne 6” Magmeter* 70 - 3,000 GPM [264.95 - 11,355 lit/min]

Chapter 2
10 SCS 450 Serial Interface Installation & Service Manual

CHAPTER
3
Manual No. 016-0159-823 11
C hapt er 3 Calibration Card
Introduction
Located on the next page is a card that may be used to record the machine’s calibration values. Write the
calibration numbers in pencil so that they may be revised if necessary. Cut on the dotted line, fold, and insert
the card into the plastic envelope provided for your convenience.
FIGURE 1. Calibration Card Inserted into Envelope

Chapter 3
12 SCS 460 Serial Interface Installation & Service Manual

CHAPTER
4
Manual No. 016-0159-831 13
C hapt er 4 Installation
Sensor Installation
Raven Radar Speed Sensor
Note: Raven Industries recommends the installation of a large, heavy mounting bracket (P/N 107-0159-
693) on the machine’s frame for mounting the radar speed sensor.
FIGURE 1. Radar Mounting Locations
1. Park the machine on a level surface.
2. Select the radar mounting location on the machine, considering the following factors:
•The line of sight from the lens to the ground must not be obstructed by structures or tires. Obstructions
must not come closer to the bottom of the radar than 20”.
•When viewed from side of the machine (end-to-end view), the radar lens must be parallel to the ground.
•When viewed from the front of the machine (side-to-side view), the radar may be tilted slightly, with no
more than a 15° tilt to provide more clearance and avoid obstructions.
End-to-End View Side-to-Side View

Chapter 4
14 SCS 450 Serial Interface Installation & Service Manual
3. Use a level to verify that the selected mounting bracket location is parallel to the ground.
4. Bolt the mounting bracket to the machine.
FIGURE 2. Radar Mounting
5. Bolt the radar to the mounted bracket using the supplied mounting hardware.
6. Connect the radar power cable (P/N 115-0159-539) to the radar.
Note: The radar power cable will be connected to the console later in the procedure.
Wheel Drive Speed Sensor
Rim Drilling for Four and Eight Hole Wheel Stud Patterns - Optional
This section is required only on wheels that do not have pre-punched mounting holes. If your machine has the
pre-punched mounting holes, proceed to the Mounting the Wheel Drive Speed Sensor section on the following
page.
FIGURE 3. Eight Hole Stud Pattern
1. Using the illustration above, choose four opposing stud holes on the wheel.
2. Using the center of the opposing stud holes, draw two lines across the wheel, dividing the wheel into four
equal parts.
3. Measure in one inch from the rim on each end of the lines and mark the wheel at each point.
4. Drill a 1/2” hole on each of the four marks.
Note: The distance between each set of drilled holes must be equal within 1/8” [3 mm] to ensure system
accuracy.

4
Manual No. 016-0159-831 15
Installation
Rim Drilling for Six Hole Wheel Stud Patterns - Optional
This section is required only on wheels that do not have pre-punched mounting holes. If your machine has the
pre-punched mounting holes, proceed to the Mounting the Wheel Drive Speed Sensor section on the following
page.
FIGURE 4. Six Hole Stud Pattern
1. Cut a piece of wood so that it is an exact fit from the top edge of the rim to the bottom edge of the rim.
2. Measure the length of the cut wood block and mark the center.
3. Using the wood block as a guide, draw two lines across the wheel, dividing the wheel into four equal parts.
4. Measure in one inch from the rim on each end of the lines and mark the wheel at each point.
5. Drill a 1/2” hold on each of the four marks.
Note: The distance between each set of drilled holes must be equal within 1/8” [3 mm] to ensure system
accuracy.
Mounting the Wheel Drive Speed Sensor
1. Select a non-driven wheel (a front wheel if the machine is rear-wheel drive, or a back wheel if the machine
is front-wheel drive) on which to mount the sensors.
FIGURE 5. Wheel Magnet Mounting
2. Mount the four magnets in the pre-punched or drilled mounting holes on the inside of the wheel so that the
red magnets are on opposite sides of the wheel.
3. Tighten the nuts on the wheel magnets to ensure they are installed securely.

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16 SCS 450 Serial Interface Installation & Service Manual
FIGURE 6. Switch Assembly Installed
Note: The switch assembly does not need to pivot with the wheel.
4. Loosely mount the switch assembly to the wheel axle with the supplied hardware, positioning it so that as
the wheel rotates, the magnets pass across the center of the switch assembly.
•Clearance between the magnets and the switch assembly must be 1/4” - 1” [6 mm - 25 mm].
•Make sure the machine’s wheels can be turned to the extremes in each direction without the magnets
coming in contact with the switch assembly.
5. Tighten the mounting hardware to secure the switch assembly.
6. Secure the switch assembly cable to the axle with zip ties.
Phoenix 10 GPS Speed Sensor
FIGURE 7. Phoenix 10 Speed Sensor Installed
Note: The Phoenix 10 is powered by a 9 - 16 VDC negative ground system.
1. Turn off all equipment on the machine to avoid interference with the speed sensor setup.
2. Apply power to the speed sensor by connecting the white wire to a clean ground and the red wire to a clean
switched power source.